Article
Agronomy
Tamires Zimmer, Vanessa de Arruda Souza, Leugim Corteze Romio, Lidiane Buligon, Gustavo Pujol Veeck, Michel Baptistella Stefanello, Debora Regina Roberti
Summary: Soil temperature, composition, and structure directly impact heat transfer mechanisms and influence mass and energy exchange processes. This study utilized two soil heat transfer models to estimate thermal properties, with results revealing an inverse relationship between soil thermal diffusivity (k) and soil temperature (Ts). The vertical variations of k and soil thermal conductivity (& lambda;) were confirmed to be dependent on soil depth and moisture content (& theta;). The conduction-convection method provided better estimations for deeper layers, while both models yielded similar results for near-surface layers. These findings are significant for understanding heat transfer and estimating thermal properties in a natural pasture area in the Brazilian Pampa biome.
AGRICULTURAL AND FOREST METEOROLOGY
(2023)
Article
Environmental Sciences
Jun Zeng, Yanjie Li, Yeliang Dai, Qinghe Zhu, Yucheng Wu, Xiangui Lin
Summary: The drying practice prior to pollutant addition has legacy effects on the soil microbial community structure, resulting in irreversible shifts in the communities. However, it has no significant impact on phenanthrene mineralization and non-extractable residue formation. The response of bacterial communities to PAH degradation is altered, leading to a decrease in the abundance of potential PAH degradation genes.
ENVIRONMENTAL POLLUTION
(2023)
Article
Environmental Sciences
Wenzhi Cui, Yingying Liu, Wenguang Li, Lei Pei, Shuang Xu, Yuhuan Sun, Jianbo Liu, Fayuan Wang
Summary: This study compared the effects of biochar and hydroxyapatite on soil bacterial communities in a slightly Cd-contaminated farmland grown with sweet sorghum of different planting densities. The results showed that both biochar and hydroxyapatite decreased the diversity and richness of soil bacteria, but they had different effects on bacterial community structure. These findings contribute to a better understanding of the ecological impacts of soil remediation agents.
Article
Ecology
Christian Santos-Medellin, Steven J. Blazewicz, Jennifer Pett-Ridge, Mary K. Firestone, Joanne B. Emerson
Summary: Viruses play a significant role in microbial mortality and nutrient turnover in soil ecosystems. A study conducted in simulated dry grassland soils found that viral communities followed similar successional patterns despite differences in composition. These findings highlight the importance of viruses in soil processes and their potential to influence microbial dynamics.
NATURE ECOLOGY & EVOLUTION
(2023)
Article
Agriculture, Multidisciplinary
Lixin Tian, Xinxin Cao, Lei Zhang, Tianyu Yang, Baili Feng
Summary: Plastic film mulching has a positive impact on soil nutrients, plant growth, and crop yield in dryland areas. This study investigated the effects of plastic film mulching on crop yield, soil quality, bacterial and fungal diversity, community composition, assembly processes, and co-occurrence networks in broomcorn millet fields in northern China. The results showed that plastic film mulching improved soil conditions and nutrients, leading to higher yield and agronomic characteristics. It also influenced fungal diversity, community composition, and abundance of certain bacterial and fungal taxa.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2023)
Article
Environmental Sciences
Arthur Prudencio de Araujo Pereira, Lara Andrade Lucena Lima, Walderly Melgaco Bezerra, Mirella Leite Pereira, Leonardo Ribeiro Oliveira Normando, Lucas William Mendes, Jose Gerardo Beserra de Oliveira, Ademir Sergio Ferreira Araujo, Vania Maria Maciel Melo
Summary: A study in the Caatinga biome of Brazil found that grazing exclusion may increase soil carbon and nitrogen content, as well as bacterial diversity, while overgrazing resulted in a decrease in organic carbon and bacterial diversity. Exclusion strategy had more pronounced effects at specific sites, while overgrazing may limit the potential of bacterial diversity in sustaining ecosystem functions.
LAND DEGRADATION & DEVELOPMENT
(2021)
Article
Microbiology
Ya Zhao, Caibin Yan, Fuchu Hu, Zhiwen Luo, Shiqing Zhang, Min Xiao, Zhe Chen, Hongyan Fan
Summary: This study revealed the impact of intercropping of litchi/Pinto peanut on soil attributes, enzyme activities, and bacterial diversity compared to litchi monoculture. The results showed that intercropping increased the content of certain nutrients in the soil, enhanced soil enzyme activities, increased soil microbial diversity, and promoted bacterial metabolic activity.
FRONTIERS IN MICROBIOLOGY
(2022)
Article
Biodiversity Conservation
Hui Zhang, Xinya Huang, Xuhui Chen, Haitao Wu, Huai Chen
Summary: This study evaluates the separate effects of earthworms, casts, and mucus on peat soil chemistry, microbial community, and enzymes. The results show that earthworms and their casts have significant negative effects on peat soil dissolved organic C, microbial biomass C, pH and polyphenol oxidase. They also have positive effects on phenolic matters, hydrolase activity, bacterial diversity, and metabolic functions. The effects of mucus on soil properties were similar to those of earthworms, but different on other soil properties. This research provides evidence that earthworms change soil properties primarily through gut processes, indicates the negative effect of earthworms on peat soil C, and calls for monitoring soil fauna to protect C stocks in degraded peatlands.
GLOBAL ECOLOGY AND CONSERVATION
(2023)
Article
Soil Science
Rafaella Silveira, Thiago de Roure Bandeira de Mello, Maria Regina Silveira Sartori Silva, Ricardo Henrique Kruger, Mercedes Maria da Cunha Bustamante
Summary: The study revealed significant impacts of soil pH increases on soil bacterial and archaeal communities under native Cerrado vegetation. Lime additions resulted in higher bacterial diversity and lower archaeal diversity, along with reduced abundance of enzyme-encoding genes for C, N, and S metabolic pathways.
BIOLOGY AND FERTILITY OF SOILS
(2021)
Article
Multidisciplinary Sciences
Kaumudi H. Prabhakara, Seppe Kuehn
Summary: Microbial community assembly is a complex process that determines community structure and function. This study investigated how external nutrient supply rate influenced interactions and therefore community assembly. The presence of algae strongly influenced community assembly, leading to convergence of initially diverse bacterial consortia. This study highlights the importance of understanding assembly processes in complex phototroph-heterotroph communities for global ecosystem functioning.
Article
Agronomy
Aqleem Abbas, Jie Duan, Assane Hamidou Abdoulaye, Yanping Fu, Yang Lin, Jiatao Xie, Jiasen Cheng, Daohong Jiang
Summary: This study monitored the bacterial community in paddy and fallow soil, finding that fallow soil had a higher abundance of beneficial microorganisms for soil health, while paddy soil had a higher abundance of potential rice pathogens. Additionally, paddy soil had higher alpha diversity, and functional analysis revealed differences in gene abundance related to siderophores and secondary metabolites between the two soil types.
Article
Biodiversity Conservation
Stefan Lofgren, Johan Stendahl, Erik Karltun
Summary: There is a growing societal demand to increase the use of forest biomass for substitution of fossil fuels, but the Critical Biomass Harvesting (CBH) indicator is criticized for not accounting for all relevant processes and exaggerating sensitivity, correlating poorly to actual forest soil conditions. It is suggested that the risk assessment and policy implications for forest biomass harvesting guidelines need to be based on solid scientific methods and data availability may not allow the indicator to be calculated at a high enough spatial resolution for forest management advice.
ECOLOGICAL INDICATORS
(2021)
Article
Multidisciplinary Sciences
Quentin Martinez, Jan Okrouhlik, Radim Sumbera, Mark Wright, Ricardo Araujo, Stan Braude, Thomas B. Hildebrandt, Susanne Holtze, Irina Ruf, Pierre-Henri Fabre
Summary: This article investigates the evolution of endothermy in vertebrates and explores the relationship between turbinal bones and endothermy. Through analysis of a large number of mammalian samples, the study found important variations in the relative surface area, morpho-anatomy, and complexity of turbinal bones across mammalian phylogeny and species ecology.
NATURE COMMUNICATIONS
(2023)
Article
Agronomy
Hongjian Wei, Yongqi Wang, Juming Zhang, Liangfa Ge, Tianzeng Liu
Summary: The study found that traffic stress significantly affected the soil properties and bacterial community of Bermudagrass turf, with some bacterial phyla showing higher abundance under traffic stress. The bacterial diversity indexes of the two Bermudagrass species under traffic stress were significantly lower than those without traffic stress. The research also suggested that Tifgreen Bermudagrass had better turf quality under traffic stress compared to Common Bermudagrass.
Article
Plant Sciences
Congwen Wang, Zhangkai Liu, Wanying Yu, Xuehua Ye, Linna Ma, Renzhong Wang, Zhenying Huang, Guofang Liu
Summary: Soil microbial communities in grasslands are affected by degradation levels, with degradation influencing fungal community structure more significantly than bacterial community structure. Soil properties, such as nutrients and texture, are major drivers of fungal community composition and structure, while soil pH plays a larger role in bacterial community. This study emphasizes the importance of managing and restoring degraded grasslands by prioritizing soil fungal community.
Article
Biochemistry & Molecular Biology
Karina Colonetti, Filippo Pinto e Vairo, Marina Siebert, Tatiele Nalin, Soraia Poloni, Luiz Fernando Wurdig Roesch, Carolina Fischinger Moura de Souza, Franciele Cabral Pinheiro, Ida Vanessa Doederlein Schwartz
Summary: This study found that cytokine levels were altered in patients with hepatic glycogen storage diseases (GSD), indicating an imbalance in the immunoregulation process. Moreover, neutrophils and some cytokines were affected by triglyceride levels. Future studies should consider this variable.
Article
Soil Science
Lv Su, Huatai Li, Jing Wang, Wenting Gao, Xia Shu, Xiting Sun, Kesu Wang, Yan Duan, Yunpeng Liu, Eiko E. Kuramae, Ruifu Zhang, Biao Shen
Summary: Bacteria that dominate and become enriched in the rhizosphere during continuous cropping have attracted increasing interest due to their ability to adapt well to the rhizosphere. However, little is known about their general composition and function. In this study, we conducted high-throughput sequencing and culture-dependent workflows to investigate the composition and function of rhizosphere bacteria during continuous cropping of tomatoes in different soils. We observed a similar succession of bacterial community compositions in the rhizosphere, and identified certain bacteria that were gradually enriched and potentially beneficial. Our study also revealed the enrichment of predicted functions related to xenobiotic biodegradation, nutrient metabolism, and antibiotic biosynthesis in different rhizosphere soils. We further demonstrated the inhibitory effect of Beijerinckia fluminensis GR2, which was gradually enriched in all tested soils, on the growth of Ralstonia solanacearum and its protective role against infection. These findings provide new insights into the assembly mechanism of gradually enriched bacteria and their role as plant-beneficial microbes in the rhizosphere.
BIOLOGY AND FERTILITY OF SOILS
(2023)
Article
Agriculture, Dairy & Animal Science
Richard R. Lobo, Jose A. Arce-Cordero, Bruna C. Agustinho, Ana D. Ravelo, James R. Vinyard, Mikayla L. Johnson, Hugo F. Monteiro, Efstathios Sarmikasoglou, Luiz Fernando W. Roesch, Kwang Cheol C. Jeong, Antonio P. Faciola
Summary: The objective of this study was to assess the interaction effects of two magnesium (Mg) sources and a ruminal buffer on ruminal microbiota composition, fermentation, and nutrient digestibility in lactating dairy cows. The findings showed that calcium-magnesium hydroxide (CaMg(OH)(2)) improved ruminal fermentation and increased the concentration of butyrate and the abundance of butyrate-producing bacteria, regardless of buffer use. However, the use of a buffer improved the digestibility of dry matter, fiber, and other nutrients.
JOURNAL OF ANIMAL SCIENCE
(2023)
Article
Microbiology
Oluwamayowa S. Akinsuyi, Luiz F. W. Roesch
Summary: The role of gut microbiota in osteoporosis has gained attention in recent years. A meta-analysis of five 16S rRNA data sets revealed significant compositional and functional microbial alterations associated with osteoporosis. Opportunistic pathogens were increased, while short-chain fatty acid producers were depleted in the osteoporosis group. Lactic acid-producing bacteria were significantly increased. Functional prediction showed differences in SCFA and amino acid biosynthesis pathways. This study provides insight into the pathogenesis of osteoporosis and potential therapeutic interventions.
MICROBIOLOGY SPECTRUM
(2023)
Article
Agricultural Engineering
Yingxin Li, Eiko E. Kuramae, Fahad Nasir, Enze Wang, Zhengang Zhang, Ji Li, Zongmu Yao, Lei Tian, Yu Sun, Shouyang Luo, Lingling Guo, Gaidi Ren, Chunjie Tian
Summary: To improve the decomposition of cellulose, cellulose-degrading bacteria were added, which successfully enhanced the degradation ability and promoted the growth of fungi.
BIORESOURCE TECHNOLOGY
(2023)
Article
Ecology
Naihana Schaffer, Roberta Fogliatto Mariot, Gleidson H. Gimenes, Filipe Selau Carlos, Luiz Fernando Wurdig Roesch, Lucas R. Garrido, George Wellington Bastos de Melo, Enilson S. de Sa, Flavio Anastacio de Oliveira Camargo
Summary: The long-term use and renewal of vineyards cause chemical changes in soil properties and microbial structure. This study evaluated the impact of vineyard renewal on the bioavailability of Cu and Zn and microbial diversity in southern Brazil. The results showed that vineyard renewal reduced Cu and Zn availability and increased microbial diversity in subtropical soils.
ECOLOGICAL ENGINEERING
(2023)
Article
Agronomy
Joao William Bossolani, Carlos Alexandre Costa Crusciol, Eduardo Mariano, Mariley Fonseca, Luiz Gustavo Moretti, Letusa Momesso, Jose Roberto Portugal, Nidia Raquel Costa, Juliano Carlos Calonego, Eiko Eurya Kuramae
Summary: The application of lime and phosphogypsum on the surface in no-tillage rotation systems can improve soil fertility and increase the recovery of nitrogen fertilizer, resulting in higher grain yield. The abundance of microbial genes and crop yield are closely related to agricultural management practices.
EUROPEAN JOURNAL OF AGRONOMY
(2023)
Article
Soil Science
Akari Mitsuta, Nao Ishige, Chikae Tatsumi, Yvonne Musavi Madegwa, Eiko Eurya Kuramae, Yoshitaka Uchida
Summary: The diversity of soil microbial community plays a crucial role in the stability of ammonia-oxidizing bacteria and archaea, especially in the presence of repeated nitrogen fertilization in agricultural systems.
Article
Microbiology
Carlos Godinho de Abreu, Luiz Fernando Wurdig Roesch, Fernando Dini Andreote, Saura Rodrigues Silva, Tatiana Silveira Junqueira de Moraes, Diego Cunha Zied, Felix Goncalves de Siqueira, Eustaquio Souza Dias, Alessandro M. Varani, Victor Satler Pylro
Summary: Agaricus subrufescens, also known as the sun mushroom, has significant nutritional and medicinal value. The genome sequence of A. subrufescens provides valuable information for cultivation alternatives and genetic editing strategies to delay the browning process. The study also identified important genes and provided resources for further fungal biological and genomic studies.
RESEARCH IN MICROBIOLOGY
(2023)
Article
Environmental Sciences
Joao W. Bossolani, Marcio F. A. Leite, Letusa Momesso, Hein Ten Berge, Jaap Bloem, Eiko E. Kuramae
Summary: The challenges of nitrogen management in agriculture include maximizing profits and soil health while minimizing nitrogen losses. Organic amendments with different carbon-to-nitrogen ratios can modify soil bacteria and microbial activity, affecting carbon and nitrogen cycling processes. High carbon-to-nitrogen ratio amendments had the strongest impact on soil carbon extraction, microbial biomass, and respiration, while low carbon-to-nitrogen ratio amendments had a greater effect on nitrogen transformation processes. Incorporating mineral nitrogen management is crucial, especially when using high carbon-to-nitrogen ratio amendments, to achieve higher crop yields.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Soil Science
Li Ji, Chunjie Tian, Eiko E. Kuramae
Summary: This study explored the relationship between microbial functions and soil element turnover during rice cultivation in saline-alkali soil over varying durations. The results showed that rice cultivation greatly improved soil nutrients, soil nutrient stoichiometry, and soil aggregate stability. It also enhanced the microbial functions involved in nutrient cycling, but these functions exhibited a succession pattern with the years of remediation. Correlation analysis indicated that soil microbial functions were closely related to changes in soil properties, especially phosphorus availability. Therefore, managing phosphorus during saline-alkali soil remediation should be prioritized.
SOIL BIOLOGY & BIOCHEMISTRY
(2023)
Article
Forestry
Buck T. Castillo, Rima B. Franklin, Kevin R. Amses, Marcio F. A. Leite, Eiko E. Kuramae, Christopher M. Gough, Timothy Y. James, Lewis Faller, John Syring
Summary: The study found that fungal communities play a crucial role in the decomposition of detritus, including coarse woody debris. Fungal communities rapidly colonize dead trees and gradually change in composition until the late stages of decomposition, during which decomposed wood is integrated into soil organic matter. Fungal communities show similarity with neighboring stages of decay and are positively related to nitrogen content. Enzyme activity changes mirror differences in carbon recalcitrance, with enzymes increasing as decomposition progresses. Fungal and bacterial gene abundances remain stable and increase, respectively, with the extent of decay.
Article
Microbiology
Joseph R. Petrone, Paula Rios Glusberger, Christian D. George, Patricia L. Milletich, Angelica P. Ahrens, Luiz Fernando Wurdig Roesch, Eric W. Triplett
Summary: Despite the availability of third-generation sequencing technologies, Illumina sequencing is still widely used in modern bacterial ecology studies for phylogenetic classification. Nanopore sequencing has now become a leading method for performing differential bacterial abundance analysis due to its ease, cost, and portability. A pipeline called RESCUE was developed to sequence bacterial rrn operons and improve taxonomic resolution, and it was shown to accurately classify species and resolve errors caused by short reads.
FRONTIERS IN MICROBIOLOGY
(2023)
Article
Biotechnology & Applied Microbiology
Richard R. Lobo, Luiz Fernando Wurdig Roesch, Ester Grilli, Antonio P. Faciola
Summary: The objective of this study was to evaluate the effects of dietary supplementation of microencapsulated blend of organic acids and pure botanicals on the ruminal microbiome. The results showed that the supplement did not modulate the diversity and abundance of ruminal microbiome. The solid-associated microenvironment had a greater bacterial diversity and an increased abundance of carbohydrate-degrading microorganisms compared to the liquid-associated microenvironment.
FERMENTATION-BASEL
(2023)
Article
Environmental Sciences
Shuaimin Chen, Eiko E. Kuramae, Zhongjun Jia, Binbin Liu
Summary: This study utilized stable isotope probing and molecular biology techniques to investigate the composition and function of active denitrifying microorganisms in the vadose zone. It revealed significant differences in the composition and function of active denitrifiers between different soil layers. This research improves our understanding of active denitrifying microbes in the vadose zone and provides insights for reducing nitrate pollution in groundwater.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)